Image forming apparatus having image bearing member and collection device to collect materials adhered on the image bearing member
US10254678B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 21, 2017 |
| Grant date | Apr 9, 2019 |
| Priority date | — |
| Expiry date | Sep 21, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G2221/0089
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
In an image forming apparatus, the image bearing member has a surface and configured to rotate about an axis. The collection device is in contact with the surface, and configured to collect materials adhered to the surface. The developing roller is configured to provide a charged toner having a first polarity. The processor is configured to perform: executing a print job in a printing period; executing, in a non-printing period, a first process in which the image bearing member is rotated at least one rotation while a holding bias is applied to the collection device, the holding bias having a second polarity opposite to the first polarity; and executing, in a non-printing period after the first process, a second process in which the image bearing member is rotated while an ejection bias is applied to the collection device, the ejection bias having the first polarity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.